Install MongoDB on Ubuntu  

1. Create a list file for MongoDB.

       Create the /etc/apt/sources.list.d/mongodb.list list file using the following command

    echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen

    ' | sudo tee /etc/apt/sources.list.d/mongodb.list

2. Reload local package database.

sudo apt-get update

3. Install the MongoDB packages.

     You can install either the latest stable version of MongoDB or a specific version of MongoDB.

 4. Install the latest stable version of MongoDB.

    sudo apt-get install -y mongodb-org

       The MongoDB instance stores its data files in /var/lib/mongodb and its log files in /var/log/mongodb by default, and runs using the mongodb user account. You can specify alternate log and   data file directories in /etc/mongod.conf

5. Start MongoDB.

    sudo service mongod start